Power splitter and combiner

[aashishsharma]

Hello.
I am using 2 way 3 Db power splitter and i am using two of these splitters one each for differential input. Out of the 4 ouput ports now available I will be giving two input to LO input of my receiver board and want to transmit other two input via an antenna. Photo attached for reference
I want to order 2way 3db splitter and want to know whether I can use 3rd splitter (marked) as a power combiner? I mean are these things reversible?
I am relatively new in RF.
Thanks in advance

 

[vfone]

Most of the splitter types are reversible.
But I do not understand your block diagram. Why did you connect directly TX to RX (using differential wires), when actually both use their own antennas.

 

[aashishsharma]

thanks vfone
actually antenna in receiver would be receiving frequency shifted signal after reflection from moving target. I am gonna subtract two frequencies to get frequency shift.
Its Doppler radar i am trying to create.
thanks